#include<bits/stdc++.h>
using namespace std;
int n, ans;
map<int, int>mp;
int main(){
    freopen("duel.in", "r", stdin);
    freopen("duel.out", "w", stdout);
    cin>>n;
    for(int i = 1, x;i <= n;i++){
        cin>>x;
        mp[x]++;
    }
    for(auto pa : mp)ans = max(ans, pa.second);
    cout<<ans<<endl;
}
